A universal design to realize a tunable perfect absorber from infrared to microwaves
| Autor: | Emmanuel Centeno, Thierry Taliercio, Antoine Moreau, Rafik Smaali, Fatima Omeis |
|---|---|
| Přispěvatelé: | Institut Pascal (IP), SIGMA Clermont (SIGMA Clermont)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020]), Institut d’Electronique et des Systèmes (IES), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Composants à Nanostructure pour le moyen infrarouge (NANOMIR), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), SIGMA Clermont (SIGMA Clermont)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Multidisciplinary
Materials science business.industry Infrared Metamaterial Resonance Physics::Optics 02 engineering and technology Dielectric 021001 nanoscience & nanotechnology Polarization (waves) 01 natural sciences 7. Clean energy Article [SPI.TRON]Engineering Sciences [physics]/Electronics [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism Optics Angular aperture 0103 physical sciences Resonance wavelength 010306 general physics 0210 nano-technology business Microwave |
| Zdroj: | Scientific Reports Scientific Reports, Nature Publishing Group, 2016, 6, pp.32589. ⟨10.1038/srep32589⟩ Scientific Reports, 2016, 6, pp.32589. ⟨10.1038/srep32589⟩ |
| ISSN: | 2045-2322 |
| Popis: | We propose a design for an universal absorber, characterized by a resonance frequency that can be tuned from visible to microwave frequencies independently of the choice of the metal and the dielectrics involved. An almost perfect absorption up to 99.8% is demonstrated at resonance for all polarization states of light and for a very wide angular aperture. These properties originate from a magnetic Fabry-Perot mode that is confined in a dielectric spacer of λ/100 thickness by a metamaterial layer and a mirror. An extraordinary large funneling through nano-slits explains how light can be trapped in the structure. Simple scaling laws can be used as a recipe to design ultra-thin perfect absorbers whatever the materials and the desired resonance wavelength, making our design truly universal. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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